Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
26 Apr 2026, 14:37
Kudos
Bookmarks
Nora and Felix are riding electric scooters at constant speeds along the same bike path from the same starting plaza to Central Station. Felix leaves first and by the time Nora leaves, Felix is already 14 kilometers ahead. If Nora rides faster than Felix, how long after Nora leaves will Nora be 1 kilometer ahead of Felix?
(1) Nora catches up to Felix 7 minutes after she leaves the plaza.
(2) Nora arrives at Central Station 12 minutes before Felix does.
(1) Nora catches up to Felix 7 minutes after she leaves the plaza.
(2) Nora arrives at Central Station 12 minutes before Felix does.
26 Apr 2026, 14:37
Kudos
Bookmarks
Official Solution:
Nora and Felix are riding electric scooters at constant speeds along the same bike path from the same starting plaza to Central Station. Felix leaves first and by the time Nora leaves, Felix is already 14 kilometers ahead. If Nora rides faster than Felix, how long after Nora leaves will Nora be 1 kilometer ahead of Felix?
(1) Nora catches up to Felix 7 minutes after she leaves the plaza.
Felix is 14 km ahead when Nora leaves. If Nora catches him 7 minutes later, then Nora gains 14 km on Felix in 7 minutes. To gain the additional 1 km needed to be 1 kilometer ahead of Felix, she needs an additional \(\frac{7}{14} = 0.5\) minutes. Thus, the total time after Nora leaves before she is 1 kilometer ahead of Felix is \(7 + 0.5 = 7.5\) minutes. Sufficient.
(2) Nora arrives at Central Station 12 minutes before Felix does.
Knowing only that Nora arrives 12 minutes before Felix does does not determine how long it takes her to become 1 km ahead, since that depends on the total trip distance and the two speeds. Not sufficient.
Answer: A
Nora and Felix are riding electric scooters at constant speeds along the same bike path from the same starting plaza to Central Station. Felix leaves first and by the time Nora leaves, Felix is already 14 kilometers ahead. If Nora rides faster than Felix, how long after Nora leaves will Nora be 1 kilometer ahead of Felix?
(1) Nora catches up to Felix 7 minutes after she leaves the plaza.
Felix is 14 km ahead when Nora leaves. If Nora catches him 7 minutes later, then Nora gains 14 km on Felix in 7 minutes. To gain the additional 1 km needed to be 1 kilometer ahead of Felix, she needs an additional \(\frac{7}{14} = 0.5\) minutes. Thus, the total time after Nora leaves before she is 1 kilometer ahead of Felix is \(7 + 0.5 = 7.5\) minutes. Sufficient.
(2) Nora arrives at Central Station 12 minutes before Felix does.
Knowing only that Nora arrives 12 minutes before Felix does does not determine how long it takes her to become 1 km ahead, since that depends on the total trip distance and the two speeds. Not sufficient.
Answer: A
